Simple past tense and past participle of cackle.(verb)
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Use "cackled" in a sentence
"I bet she "cackled" with her machine gun laugh for an hour."
""He did!" the hens cackled, meaning that Turkey Proudfoot had run away from the geese."
"So spoke Mrs. Tynan to her daughter, who alternately swung backwards and forwards in a big rocking-chair, silently gazing into the distant sky, or sat still and "cackled" as her mother had said."